Number of monocyclic skeletons with n carbon atoms and a ring size of 10.

Terms

a(0) =1a(1) =1a(2) =7a(3) =21a(4) =93a(5) =319a(6) =1170a(7) =3931a(8) =13168a(9) =42365a(10) =134372a(11) =416765a(12) =1275718a(13) =3850137a(14) =11501014a(15) =34025545a(16) =99891325a(17) =291245242a(18) =844287970a(19) =2435145974a(20) =6993264128a(21) =20007298353a(22) =57051831889a(23) =162217819731a(24) =460079126428